The posterior (tegmentum) section of the brainstem contains which structures?

Reticular formation

Ascending sensory tracts

Cranial nerve nuclei

Medial longitudinal fasciculus

What are two of the main functions of the reticular formation?

Regulation of vital functions

Regulation of somatic motor activity by the reticulospinal tracts

Where are the sensory or autonomic nuclei located for CN VII-X?

Dorsal rostral medulla

UMN input to the facial nerve is contra or ipsilateral?

CONTRALATERAL - Paresis of the lower left face with normal function of both eyes indicates a lesion in the UMN pathway from the right cerebral cortex

*LMN lesion would be the entire ipsilateral face

What structure? --> Part of the midbrain
posterior to the cerebral aqueduct, consisting of the pretectal area and the
superior and inferior colliculi; involved in reflexive movements of the eyes
and head.

Tectum

What structure? --> Posterior part of the
brainstem, including sensory nuclei and tracts, reticular formation, cranial
nerve nuclei, and the medial longitudinal fasciculus.